Macroplea mutica ( Fabricius, 1792 )

Lou, Qiaozhe, Yu, Peiyu & Liang, Hongbin, 2011, Two new species of Macroplea Samouelle (Coleoptera: Chrysomelidae: Donaciinae) from China, with a key to all known species, Zootaxa 3003, pp. 1-21 : 17

Macroplea mutica ( Fabricius, 1792) .

( Figs 53 , 59 , 63, 67 , 71 , 79–84 )

Specimens examined. Total 80 specimens: 1 male, “Balitai, Tianjin City, China, 8.V.1956 ”; 1 male, same locality with dating “ 10.V.1956 ”; 1 male and 1 female, same locality with dating “ 30.IV.1957, Jiajun Tang collector”; 1 female, same locality with dating “ 30.IV.1957 ”; 1 male, same locality with dating “ 10.IV.1958 ”; 1 male, “Tschita été 192, leg. V.J. Tomachov, Musée Heude”; 31 males and 31 females, “ Mongolia, Bulgan Teshig, Hargal Nuur, Potamogetonaceae , N49.92762, E102.72817”/ “ 1058 m, 2010.7.10 D, Liang H.B., Shi C.M., Institute of Zoology, Chinese Acad. Sci.”; 11 specimens in cocoons preserved in alcohol, “ Mongolia, Arkhangay, Ogii Nuur, Sparganiaceae , N47.76197, E102.81206”/ “ 1338 m, 2010.7.2 D, Liang H.B., Shi C.M., Institute of Zoology, Chinese Acad. Sci.”.

Distribution. China (Heilongjiang, Tianjin), Japan, Siberia, Mongolia, Middle Asia, Europe.

Host plants. Brasenia Schreb. (Cabombaceae) , Potamogeton L. ( Potamogetonaceae ), Ruppia L. ( Zosteraceae ) and Zostera L. ( Zosteraceae ) ( Bieńkowski & Orlova-Bieńkowskaja, 2004). Sparganiaceae are also host plants of M. mutica according to our observation.

Biology. The corresponding author (Liang) recently collected specimens of M. mutica in large numbers from Hargal Nuur and Ogii Nuur of Mongolia. In Ogii Nuur lake, the adults were still in Coocon on the roots of Sparganiaceae on July 2, 2010. However, in Hargal Nuur, many adults were observed walking slowly on the leaves of Potamogetonaceae on July 10, 2010. Immobility (cannot swim or fly) is believed to be the specific feature of M. mutica by Mende et al. (2010: 101).

Remarks. Kölsch et al. (2006), and Mende et al. (2010) recorded M. mutica from Daqing, Heilongjiang, China. Hori (2006) recorded one female specimen in Japan.

Figures

FIGURES 50 – 53. Macraplea spp. 50. M. appendiculata from Xinjiang, male; 51. M. pubipennis from Ningxia, female; 52. M. japana from Jiangsu, female; 53. M. mutica from Tianjin, female. Scale lines = 5.0 mm.

FIGURES 54 – 59. Head, prothorax and pronotum of Macroplea spp. 54 – 56. M. japana from Jiangsu; 57. M. pubipennis from Ningxia; 58. M. appendiculata from Xinjiang; 59. M. mutica from Tianjin; 54. Head and prothorax, lateral view; 55. Vertex, dorsal view; 56 – 59. Pronotum, dorsal view. Scale lines = 0.5 mm.

FIGURES 60 – 67. Elytron of Macroplea spp. 60, 64. M. japana from Jiangsu; 61, 65. M. pubipennis from Ningxia; 62, 66. M. appendiculata from Xinjiang; 63, 67. M. mutica from Tianjin. 60 – 63. Left elytron, middle part; 64, 66, 67. Apex of left elytron; 65. Apexes of both elytra. Scale lines = 0.2 mm.

FIGURES 68 – 71. Tarsus of Macroplea spp. 68. M. japana from Jiangsu; 69. M. pubipennis from Ningxia; 70. M. appendiculata from Xinjiang; 71. M. mutica from Tianjin. 68, 70, 71. Right metatarsus; 69. Left protarsus. Scale lines = 0.5 mm

FIGURES 79 – 84. Macroplea mutica from Tianjin. 79, 80. Median lobe without endophallus in it (79. Dorsal view; 80. Lateral view); 84. Tegmen, dorsal view; 81 – 83. Endophallus (81. Lateral view; 82. Dorsal review; 83. Ventral review). Scale line = 0.5 mm.